A cokporatioii of new jebsey



W. A. SMITH.

MOUNTING FOR DRILLS,

APPLICATION FILED JUNE 2B. 1918.

Patented. Nov; 16, 1920-.

/4- I I! l M 16 .M I]

W INV NTOR.

BY X ATTOREYS.

UNITED srarss PATENT QFEIQE.

WILLIAM A. sivrrrn, or EASION, PENNSYLVANIA, assrenon r0 INGERSOLL-RANZD COMPANY, or JEnsnY oI'rY, new JERSEY, A oonPonaTIoII on NEW JERSEY MOUNTING F Specification of Letters Patent.

03 DBILLS Patented Nov. 16, 1920.

To (ZZZ whom it may concern:

Be it known thatl, WILLIAM A. SMITH, a citizen of the United States, residing at Easton, in the county of Northampton and filtate of Pennsylvania, have invented a cer tain new and useful Improvement in Mountings for Drills, of which the followinn is a specification.

T his invention relates to percussive tools and in particular to a mounting for a fluid operated percussive drill to hold and guide the drill within the shell while it is in operation.

The objects of the present invention'are to provide a mounting or carriage for percussive drills which will be simple durable, and readily assembled and which will form a rigid support for the drill cylinder.

A -further object of the invention is to provide :1 11101111131112 or carriage having guides on either side adapted to fit the guideways of a shell and to provide the V mounting or carriage with a feed nut at its rear end to engage the feed screw usually pro ided as a part of the shell.

lVith these and other obiects in view my invention consistsin the features of construction and operation set forth in the fol owing description and illustrated in the accompanyi g: drawings, forming a part he of in which 7 I I Fi ure 1 shows a per ussive tool cylinder with the mountingof the present invention p rt allv co ected thereto, some of the pa ts be nq in section: and

T io. 2. a lon itudinal view of the drill cy nder mounting and shell partially in. se tion. 1

Referring more par u rlv to the drawin s, 1 reters to the drill cvlinder o a fluid, o ated percuss e drill such as a hammen drill o i ed with means to he more fu ly} descri ed he" atter or tt chino: it to the., mou t n' The d i l Cylinder 1 may he of Extending downwardly from the motor casing? which forms a part of the cylinder body 1s a lug 9 having a hole 10 passing horizontally and transversely therethrough and at the rear of the cylinder 1 is a transverse horizontal notch 11. It is by these means that the cylinder is held in position on the carriage or mounting. The carriage 12 at its forward end is provided with two lugs 13 each having a hole bored horizontally therethrouqh similar to and of the same size as the hole 10 the lugs being separated suflici'ently to permit the lug 9 on the motor casino 2 to pass between them, thus bringing the holes through the 1112's on the mounting into alinement with the hole 10 in the lug on the motor casing. A

pin 15 extends through each of the holes provided in the lugs 9 and 13, thus rotatively holding the mounting or carriage 12 and drill cylinder body 1 together.

At the rear of the mounting or carriage 12 depends a luq 14 having a lourritudinal hole extending therethroug'h in which is located the feed nut 16 through which passes the feed screw lfrotatively mounted in the shell 18 and by means of which the drill is advanced and withdrawn from the rock during its operation.

Surroundino: the feed nut'16 is a clampinp; member 19 having a proiectio'n 20 at its upper edge, adapted o fit into the notch 11 provided in the cylinder 1. -On i s lower ed e another proiection 21 is provided nar-v allel to the projection 20 and which is adapt ed to take up on an inclined portion 22 ot the luq 14 when the nut 23 is tio'htened. It will be seen from the ahove description that when the nut 23 is ti' 'hte ed it not onlv securelv hol s the teed nut 16 in place but also holds the cy inder holv 1 against the mounting or carriage 12 bv means of the en s ment of the clampin' member 19 wi the notch 11 in the c linder.

anv desired tvne the one shown having atjl This connection between he no ch 11 and moto cas n 2 at its front end and a re duced cvlinder bore 3 in its forward part ioinin the enlarged bore 4 extending to its re ward part. At the Forward end of the cylinder 1 is: p o ided the usu l chuck 5 for holding the dril steel 6. and at the rear end the hack head 7 sets arrainst the cylinder the chuck 5 and back head 7 being held to ether by the side bolts 8 firmly holding all of the. above partstogeth'or;

clamping m mber 9 su pl ments the con nection of the cylinder body 1 and motor cosine 2 to the lu rs 13 on the moun iu r at the fo ward end to prov de a i' id and new ma ent mou ting of the drill cylinder 1 an the mounting, 7,

It is to he un'ler tood that the n'csent sho in and d sc i on d sclose oulv one spe i c em od m t of he re n i vention and that oth r te ms and mo'litications a c "'incraded' within the spirit and scope of the invention, as expressed in the appended claims. 7

What 'I'claim is:

1. In a mounting for percussive tools, in combination a shell, a feed screw, a cylinder body provided with a lug at its forward end and a portion at its rear end having a notch therein, a carriagermounted' on said shell and adapted to pivotally engage said cylinder body at' its forward end and a clamp. secured to said carriage and engagingpsaid notch to hold said cylinder body and carriagatogether. V

2. In a. mounting for percussive tools, in combination a shell, a feed screw, a cylinder body, provided with 'a-lug'at its forward end and a portion at its rear end having a, notch therein, a carriage mounted on said shell: and having .a pin engaging the lug on the cylinderzbody. and a. clamping member engaging; the notch on said carriage whereby saidic'ylinderbody an'dcarriage are held rigidlvtogether;

'3'; Ina 'mountingfor percussive tools, a shell, a feed" screw and feed nut, a carriage mounted on said shell and arranged to be fed; therealong by meansof said feed screw and nut, a tool cylinder attached to said carriage at one end and" clamping means at the other end-of said carriage arranged to engage said: cylinder body, carriage and feed nut'to secure said cylinder-body, carri'age and'feed nut in position.

4;: In'avmountingfor percussive tools, a

shell, av feed screw and feed nut, a carriage mountedon-sa1d shell" and'arranged to be fed therealong by said feed screw and nut, a tool cylinder pivoted to said carriage at one endand clamping means at the other end ofsaid carriage-i arranged to engage said cylinder body, carriage and" feed nut and secure said cylinder body, carriageand feed nut in position.

5 In amounting-for percussive tools, a

shell, a feed screwiand 'feed' nut, a carriage mounted on said shell'and arranged to be fed the-realong bysaid feed'serew and nut, a tool cylinder pivoted tdsaidcarriageat its forward end and clamping means at'the rearward end of said carriage arranged to engage said cylinder body, carriage andfeed nut and secure said cylinder body, carriage and feed nut in position.

6. In a mounting for percussive tools, a shell, a feed screw and feed nut, a carriage mountedin said shell and arranged to be fed therealong by means of said feed screw and nut, a tool" cylinder body pivoted to the forward end of said carriage, and clamping means surrounding the feed screw at the rearward end of said carriage for engaging said cylinder body, carriage and feed nut to secure said cylinder body, carriage and feed nut in position. i

7; Ina mounting for percussive tools, a

shell, a feed screw and feed nut, a carriage mounted in said shell and arranged to be fed therealong by means of said feed screw and nut, a tool cylinder body pivoted to the forward end of said carriage and clamping means secured to the rearward end of said carriage and moving with the carriage as it isfed along the shell for engaging said cylinder body, carriage and feed nut to secure said cylinder body, carriage and feed nut in position.

8. In a mounting for percussive tools, a shell, a feed screw and feed nut, a carriage mounted on said shell and arranged to be fed therealong by means of said feed screw, a'tool cylinder body provided with a lug at its forward end and arranged to be pivoted to the forward end of said carriage by men us of lugs on said carriage, the said cylinder body having a notch at its rearward end and clamps secured to said carriage in a manner to engage said notch and hold said cylinder body, carriage and feed nut in position.

9. In a mounting for percussive tools, a shell, a feed screw and feed nut, a carriage mounted on said shell and arranged to be fed therealong by means of said feed screw and nut, a toolcylinder body attached to said carriage at one end and a common means serving to secure the cylinder body to the carriage atithe other end and to secure the feed nut inposition relative to the carriage.

10. In a mounting for percussive tools, a shell, a feedscrew and feed nut, a carriage mountedon said shell and arranged to be fed therealong by means ofsaid feed screw and nut, a tool cylinder body attached to said carriage at one end and a common means-0n said feed screw serving to secure the cylinder bodyto the carriage at the othenend and tosecure the feed nut in position relative to the-carriage;

11. In amounting for percussive tools. a shell a! feed screw and feed nut, a carriage mounted on said shell and arranged to be fed therealong by means of said feed screw and nut, a tool cylinder body attached to said carriage at one end, and a single clamping'm'eans for simultaneously securing the cylinder body, carriage and feed nut, in position.

12. In a mounting for percussive tools, a shell,a feed screw and feed nut, a carriage mounted on said shell and arranged to be fed therealong by means of said feed screw and nut, a tool cylinder body attached to saidcarriage at one end, and a single clamping means on said feed screw for simultaneously securing the cylinder body, carriage and feed nut in position.

13. In a mounting for percussive tools, a shell, a feed screw and feed nut, a carriage mounted on said shell and. arranged to be fed therealong by means of said feed screw and nut, a tool cylinder body attached to said carriage at one end and clamping means at the other end comprising a bolt and nut for exerting pressure longitudinally of the cylinder body, against a clamping member, for securing said cylinder body, carria 'e and feed nut in position.

14-. Tu a mounting for percussive tools, a shell, a feed screw and feed nut, a carriage mounted on said shell and arranged to be fed therealong by means of said feed screw and nut, a tool cylinder body attached to said carriage at one end and clamping means on said feed screw comprising a bolt and nut at the other end for exerting pressure longitudinally of the cylinder body, against a clamping member for securing said cylinder body, carriage and feed nut in position.

15. In. a mounting for percussive tools, a shell, a feed screw and feed nut, a carriage mounted. on said shell and arranged to be fed therealong by means of said feed screw and nut, a tool cylinder body attached to said carriage at the forward end and clamping means at the rear end comprising a bolt and nut for exerting pressure longitudinally of the cylinder body, against a clamping member for securing said cylinder body, carria e and feed nut in position.

16. in a mounting for percussive tools, a shell, a feed screw and feed nut, a carriage mounted on said shell and arranged to be fed therealong by means of said feed screw and nut, a tool cylinder body attached to said carriage at the forward end and clamping means on said feed screw at the rear end comprising a bolt and nut for exerting pressure longitudinally of the cylinder body, against a clamping member for securing said cylinder body, carriage and feed nut in position.

In testimony whereof, I have hereunto set my hand.

WILLIAM A. SMITH. 

